Tandem draft connection for harvesters.



0. PEARSON. TANDEM DRAFT CONNECTION FOR'HARVESTERS.

APPLICATION FILED MAR. 2, 1911 r L0139 Patented Jan. 9, 1912.

2 SHEETS-SHEET 1.

G; PEARSON. TANDEM DRAFT cormno'non' FOP. HARVESTERS.

APPLICATION FILED MARZ, 1911.

Patented Jan. 9,1912.

2 SHEETS-SHEET 2.

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"Connections for Harvesters, of which rare an onion.

CHARLES rnmason, or cnicnco, ILLINUIS, nssrenon 'ro rnrnnuarromin nenvnsrrnn, conrm, .e conronn'rron or new .mnsnv.

Specification, of Letters Patent. Application filed March 2, 1811. Serial No; 611,824.

TANDEM imar'r' connnorron roe nanvnsrnns.

Patented Jano arena.

of Illinois, have invented certain new and useful Improvements in Tandem Draft the following is a specification,

"My invention relates to an improved draftdevice whereby a series of grain harvesters or other implements may be connected together in tandem relation and, drawnforward by a single source of power,

as a traction engine connected with the front machine of the series,-and consists in providing draft connections between the diflerent units and between the series and the source of power that may be manipulated by the operator upon the machine in.

a'manner to control the line of advance of one machine independent of the others whereby a greater or lesswidth ofswath may be cut by either unit of the series; the object of my invention being to provide a draft connection that may be controlled in a simple and positive manner for the purpose described, strong in construction and efiicient in operation. I-attainthese objects by means of the mechanism illustrated by the accompanying drawings, in which- Figure 1 1s a top plan view of the wheel frame of a grain harvester and a portion of the grain platform thought to be sufficient to illustrate the manner of connecting my improved draft mechanism; Fig. 2 is'a side elevation of- Fi detail designed to illustrate the manner of connecting the harvester tilting mechanism to the draft tongue; Fig. 4 is a detail of part of the tilting mechanism and repre- "sents the upper end of the connecting bar that extends from the tilting crank to the draft tongue; Fig. 5 is a detail of part of the draft mechanism; Fig. 6 is across sec- "145 tion of Fig. 5; Fig.7 is a rear end elevation of Fig. 2e; and Fig. 8 is aplan view of two harvesters connected together in tandem re lation. v

The same reference numerals designate like partsthroughout the several views.

1 represents the harvester tractionwheel; 2 and 3 the front and rear member's, re-' spectively, of the wheel frame; a and 5 cross members of thewheel frame at the stubbleward and grainward side of the traction lyFig, 3 is adetached wheel, respectively; 6 a part ofthe grain platform, representing the delivery end thereof; 7 a seat supporting pipe; 8 an operators seat carried by said pipe; 9-apart of the elevator frame atflthe rear side. of the harvester; 10 a part of the frontframe of the elevator; 11 the grain binder deck, and 12 the tilting lever connected with the tilting crank 13, allof these parts being.

common in,this class of machines.

1a represents a draft bracket secured to the front end of the cross member 5 of the wheel frame, having its rear end extending downward and rearward and its front pori tion turnedupward and forward and over thefront member of the wheel frame, and then-downward and provided with anopening arrangd transversely relative to-the line of draft of the machine and adapted to receive a connecting pin 15 that connects the bracket with thestubbleward end of a transversely arranged draft bar 16, the opposite-end ofthe' bar being pivotally con-.

nected with a supplemental draft'bracket 17 secured to the wheel frame near the delivery end of the grain platform,

, 18 represents a'draft tongue having its rear end pivotally connected'with the stub :bleward end of the draft-bar 16 in: a manner permitting it to swing laterally relative-to the line of draft of the machine,-and 19 and '20 represent upper and lower draft tongue braceshaving their rear endspivotally con-- nected with the grainwardend of draft bar 16- and their forward ends with a movable 'block121 that is provided with a threaded sleeve 'po'rtioni22 that receives a screw threaded shaft 23- that is journaled in brackets 24 secured to the grainward sideof the draft tongue, the shaft being arranged parallel with the draft tongue and having secured to its rear end .a member 25 that forms a part of the universal coupling 26 that connects the shaft with the rearwardly extending shaft 27, having its rear end journaled in-a clip 28 secured to the rear end of the draft tongue. Theshaft 27 is connected with the supplemental shaft 29 by means of a universal coupling 30, and the rear end of shaft 29 is connected with inclined shaft 31 by means of a universal coupling 32, the. shaft 31 passing rearwardly' and upwardly and having its upper end journaled in :a bracket 33 secured to the harvester frame in rear of the elevator and provided with a crank portion 84: within .convenientreach of the operator, whereby the shaft 23 maybe rotated in a manner to cause the block 21 to move thereon and cause the draft tongue to swing laterally, the direction thereof being governed by the direction of rotation of the shaft and its associated operative parts.

represents a reach bar having its forward end pivotally connected with the rear end of draft bracket 14-, and extending rearward below the wheel frame is provided at its rear end with means whereby it may be connected with the draft tongue of a trailing machine, as shown in Fig. 8.

Pivotally mounted upon a vertical stud 36, secured to the rear end of the seat supporting pipe and adapted to swing laterally, is a bracket 37, and 38 represents a link that is flexibly connected at opposite ends with the rear end of the bracket and the rear end of the reach bar. The rear end of the reach bar may swing laterally relative to the line of draft within the limit of the length of chain 39 that cdnnects it with the seat pipe.

By manipulating the crank 34 the operator may vary the angle of the draft tongue relative to the harvester in a manner to vary the path of advance of the latter relative to that of the source of power and either cause the series of machines to trail in substantially the same path as when the r machines are being transported, or in different paths, dependent upon the desired Width of cut.

\Vhat I'claim'as my invention, and desire to secure by Letters Patent, is:

1. A tandem draft connection for har- 'vesters including, in combination, a draft tongue pivotally connected with the matioples of this patent may be obtained for five cents each, byaddressing' the Commissioner of Eatenta chine in a manner to swing laterally relative to the line of draft of the machine, means for adjusting the front end of said draft tongue laterally, a reach bar having its forward end pivotally connected with.

rear end of said reach bar whereby the latter' is supported.

2'. A tandem draft connection for har-' vesters including, in combination, a draft tongue pivotally connected with the machine in a manner to swing laterally relative to the line of draft of said machine, means for adjusting the saiddraft tongue laterally, a reach bar having its-forward end pivotally connected with front side of the machine in a manner permitting it to swing freely at its rear end in a lateral direction relative to the line'of draft ofthe'machine,

a bracket pivotally mounted upon the frame of the harvester and extending inrear thereof above the rear end of said-reach bar, a link connection between the rear end of said bracket and the rear end of said-reach bar, and a flexible connection between the rear endof said reach bar and a fixed partof the machine adapted to limit a lateral swinging movement of 'saidbar in 0p site directions.

1 CHARLE PEARSON.

Witnesses:

FRANK O. ZABILKA, BAY PATTIsON.

Washington, D, G." 

